Infrared Image Edge Detection of High Voltage Insulator Chain
A new method for image edge detection based on envelope curve of histogram is proposed, aimed at the characteristics of high voltage transmission line. In order to inhibit noise influence on infrared image, envelop curve of histogram, got from Savitzky-Golay(S-G) filter, is used to smooth the image, and the edge of infrared image can be detected based on the extreme points of the envelop curve. Experimental results show that this new algorithm is simple and effective to detect whole contour and detail information, and is better than other traditional operators.
A. Hui "Infrared Image Edge Detection of High Voltage Insulator Chain", Applied Mechanics and Materials, Vols. 58-60, pp. 1882-1885, 2011